The utility model is a wind changing device, including a wind exchange tube and a fan installed in the air exchange tube. The interior end of the air exchange tube is equipped with a sound elimination box. The interior of the muffler is divided into two chambers, inside and outside, the inner wall of the inner chamber is interlinked with the inner chamber, the inner wall of the inner chamber is set as the inner muffle wall, and the inner silencing wall has a silencing wall. The cotton has a preliminary weakening effect on the noise; the outer chamber is equipped with an inlet, and the outer chamber is equipped with a number of counter wind anechoic tubes connected with the inner chamber. The air flow has the reverse restraining effect on the noise, the noise intensity is further weakened, the one end of the counter wind anechoic tube is mounted on the sound insulation baffle and the other end of the counter wind anechoic tube is on the right side. The inner wall of the chamber is set as an outer noise wall, and a silencer is provided on the outer noise wall, and the air inlet is set on the side wall of the outer chamber corresponding to the side wall of the counterwind noise elimination tube. The noise after the counterwind anechoic tube is weakened before the noise of the silencer in the outer chamber is weakened before it gets out of the air inlet, so that the noise is greatly weakened.
【技术实现步骤摘要】
一种换风装置
本技术涉及一种空气换新装置,特别是一种换风装置。
技术介绍
一般家用抽(送)风机虽然能在一定程度上改善室内空气质量,但是大多数抽(送)风机都存在噪声大、风量小、效率低的缺陷,尤其是噪声大这一缺陷,让人们感到很烦躁,长期被噪声干扰会使人产生幻听,严重影响听力。
技术实现思路
本技术所要解决的技术问题是针对现有技术的不足,提供一种噪声小,风量大且高效的换风装置。本技术所要解决的技术问题是通过以下的技术方案来实现的。本技术是一种换风装置,包括换风管和装在换风管内的风机,其特点是:换风管的室内端装有消声箱,所述消声箱的内部由隔音挡板分隔成内、外两个腔室,换风管与内腔室相通,内腔室的内壁设置为内消声壁,内消声壁上设有消音棉;外腔室上设有进风口,外腔室内设有与内腔室相通的若干逆风消声管,逆风消声管的一端装在隔音挡板上,逆风消声管的另一端正对的外腔室的内壁设置为外消声壁,外消声壁上设有消音棉。本技术所要解决的技术问题还可以通过以下的技术方案来进一步实现。在以上所述的一种换风装置中:所述进风口设置在与逆风消声管侧壁对应的外腔室侧壁上。本技术通过设置换风管和风机,并在换风管的室内端安装消声箱,起到削减风机噪声的作用;通过在消声箱内设置隔音挡板将消声箱分隔成内、外两个腔室,并在外腔室内设置与内腔室相通的若干逆风消声管,使风机的噪音在逆风作用下得到削弱;通过设置消音棉,起到辅助削减噪音的作用;通过将进风口设置在与逆风消声管侧壁对应的外腔室侧壁上,使得经过逆风消声管削弱后的噪音先经过外腔室内的消音棉减弱后才从进风口钻出,从而使噪音大大减弱。与现有技术相比,本技术具有噪音 ...
【技术保护点】
1.一种换风装置,包括换风管和装在换风管内的风机,其特征在于:换风管的室内端装有消声箱,所述消声箱的内部由隔音挡板分隔成内、外两个腔室,换风管与内腔室相通, 内腔室的内壁设置为内消声壁,内消声壁上设有消音棉;外腔室上设有进风口,外腔室内设有与内腔室相通的若干逆风消声管,逆风消声管的一端装在隔音挡板上,逆风消声管的另一端正对的外腔室的内壁设置为外消声壁,外消声壁上设有消音棉。
【技术特征摘要】
1.一种换风装置,包括换风管和装在换风管内的风机,其特征在于:换风管的室内端装有消声箱,所述消声箱的内部由隔音挡板分隔成内、外两个腔室,换风管与内腔室相通,内腔室的内壁设置为内消声壁,内消声壁上设有消音棉;外腔室上设有进风口,外腔室内设有...
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